Spool and bobbin



March 26, 1929. 'H,D CLINTON I 1,707,076

SPOOL AND BOBBIN Filed April 25. 1928 I N VEN TOR.

74 ATTORNEYJZ Patented Mar. 26, 1929.

UNITED STATES HARRY D. CLINTON, or JOHNSON m i mgj SPOOL AND BoBBInQ Application filed April 25, 1928. Serial No. 272,828.

This invention relates to spools and bobbins and particularly to those of the types used in textile mills. It aims to provide spools or bobbins of improved construct ion and character for general utility while especially appropriate for use in steaming or otherwise treating silk or yarn prior to weaving. I

The invention will be best understood from the following descriptionwith reference to the accompanying drawings, wherein practical embodiments thereof are illustrated in the form of a bobbin loader for "fine silk thread. i V

In said drawings:

Fig. 1 is a representation in parti sectional elevation of one form of bobbin'embodying bobbin heads;

the invention;

Fig. 2 is a similar but fragmentary representation of amodified form of bobbin,

Fig. 3 illustrates a plan view of one of the Fig. 4 is a section of the head taken on the line 4-4 of the preceding figure;

Fig. 5 is an elevation of one form of connecting part; and

Fig. 6 is a silnilar view ofa modified form of connecting part. i

The illustrative bobbin or spool comprises only four parts, two of which are substantial duplicates. These parts formed preferably of metal having low coeflicient of expansion from heat are united in a novel and simple manner providing a strong, rigid and durable construction.

In this instance, the barrel 7 of the bobbin is formed by a section of spirally-corrugated metallic tubing of minimized wall thickness combining the advantages of lightness and tration and saturation of the wall of closely wound material.

Heads for the ends of the barrel are repre-'.

sented by metallicplates 8 shown centrally apertured for engagement over a member or part disposed axially of the barrel. In this instance'the plates or heads are stamped or formed with a marginally scallopedannular depression or shallow recess 8 in .one side conforming to the periphery of the corru gated barrel so as to receive or complementarily fit the ends thereof without p'ossi bility of rotation independently'of the barrel when secured thereagaicost. Along the margin of said recess in the'heads, annularly spaced orifices 8 are shown punched to oppose the depressions of corrugation in the outer periphery: of thebarrel when the heads are applied to the ends thereof. Said orifices are provided for the purpose of admitting steam or other fluid *td the depressions in the barrel periphery from the ends of the bobbinwhen the latteris loaded with silk or yarn. Such orifices, also lighten the weight of the bobbin or spool'to a' slight measure. 7 a

Means securing the heads to theends of the barrel is in thisinstance provided by a bar or core-piece '9 extending axially through the barr l in slight project-ion beyond the ends'of t e latter. In thetwo embodiments shown, said bar is formed with shoulders 9 near its ends against which the inner faces of the head's bear, while'fendportions of thebar are swaged or depressed over the outer facesof the headstohold them securely tothe barrel ends, thu si in effect acting as tie-rod conneetingf the heads through fthebarrel' with the Qlattei' clamped rigidly between the former;

In Fig. 4, thebarvor core-piece isrepre- 1 sented in hollow form providing a spool of the embodiment shownin Fig. 1 adapted to receive supporting spindles'upon which to rotate, while in Fig. 6 said bar isrepresented in solid form with reduced extensions 9 providing a spool of the embodiment shown in Fig. 2 having gudgeons'for ,IOtilitr ably supportingithesamea a p A bobbin or spoolof novel, improved and simplified construction -is ;thus provided,

wherein the attachment of the heads to the barrel ends is made to depend upon the form or peripheral contour of the barrel clamped receptively therebetween. four simple parts, of which two may be duplicates and one is of interchangeable Comprising only form, it may be produced in either of the illustrated embodiments at very little expense, especially in large quantities. For

preservation purposes, the entire bobbin or spool is advantageously made rust-proof either by theuse of rust-proof metals or by coating treatment. I

\Vhile the-illustrated bobbin is an allmetal product, any one of its parts, especially the heads may be formed of some other material, such for example as hard vulcanized fibre which will not readily break under strain and abusive treatment in the.

mills. As hereinbe'tore stated, the claimed construction is especially appropriate for steamin bobbins or spools because of the form 0 the barrel permitting the passage of; steam or other fluid under yarn or silk loaded thereon so as to permeate the same from the barrel outwardly as well as from the outside inwardly, the fluid being admit ted to the depressions of corrugation 1n thebarrel through the lightening orifices in the heads. When formedentirely of metal, the parts will not materially expand 'nor loosen or separate from steam moisture.

' the ends of the barrel.

The term spool as-used in' the claims is intended to include bobbins or any other. strand ho der com prising a barrel with end heads. l I

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United'States-is y 1. A spool comprising a barrel of spirally-corrugated metallic tubing, metallic heads recessed withscalloped margin conforming to the peripheral edge of the barrel so as to fit complementarily thereagainst' at opposite ends and having annularly spaced orifices opposing the depressions of corrugation in the body of the barrel, and a metal barextending axially through the barrel and swaged over the outer faces of theheads to hold the latter rigidly fitted to the ends of the former.

M ore 7 over, thesilk. or yarn will not be stamed ceptively engaging the barrel at opposite ends thereof and having annularly spaced orifices opposing the depressions of corrugation in the outer peripheryof the barrel,

and a bar connecting the heads through the barrel in a manner to engage them securely thereagainst.

3. An improved steaming spool comprising a hollow s irally-corrugated metal barrel, metallic eads receptively engaging with opposite ends of the barrel and having annularly spaced orifices opposing the depressions of corrugation in the bodythereof, and a metallic core-piece extending through the barrel and swaged to the outer faces of the headsito prevent disengagement from the barrel ends, the spool being rust-proofed to prevent deterioration from moisture.

4. A metal steaming spool comprising a barrel formed of a section of spirally-corrugated tubing, disc-like heads recessed to engage the barrel complementarily at o)- posite ends thereof and having annularly spaced orifices o posing the depressions of corrugation in tiie barrel body,- and a tiebar connecting the heads through the barrel to clamp the latter rigidly between the former.

5. A spool comprising a hollow spirallycorrugated metal barrel, metallic heads fitting complementarily against opposite ends of the barrel and having annularly spaced orifices opposingth-e depressions of corrugation in the outer periphery thereof, and a metal core-piece extending through the barrel and swaged over the outer faces of the heads to secure the latter rigidly against the barrel ends.

6. A spool comprising a barrel formed of -HARRY D. CLINTON. 

